《金匮》云∶香港脚上入少腹不仁，肾气丸主之。盖湿淫之气，自下侵上，肾虚阳弱，不
能御
之，则渐入少腹而痹着不仁矣。肾气丸理肾之气者也，肾气得理，邪气自下，而不仁者仁矣
。
肾气丸
熟地黄（八两） 萸肉 山药（各四两） 茯苓 泽泻 丹皮（各三两） 附子（制） 肉桂（
各一两）
上八味末之，炼蜜为丸梧子大，每服三钱，空心淡盐汤下。
《三因》吴萸丸 治香港脚入腹，腹中不仁，喘急欲死。
吴茱萸（汤洗七次） 木瓜（去瓤，切片，日干，等分）
上为末，酒糊丸梧子大，每服五十丸，至百丸，酒饮任下，或以木瓜蒸烂，研膏为丸尤妙。
香港脚上气者，风毒湿气，循经上入于肺故也。肺主气而司呼吸，邪气入之，则气道奔迫
，升降不顺，故令上气喘满，甚者不得偃卧也。
桑白皮汤
桑白皮（炙，二两） 陈皮（一两） 葶苈（苦者炒研，一两） 杏仁（去皮尖，一两）
共为末，水煎，姜枣汤，入末三钱，再沸温服，当利一二行，肿气下却瘥。三五日服一
次。一方无杏仁。
《活人》桑白皮散
桑白皮 郁李仁（各一两） 赤苓（二两） 木香 防己（各一两半） 紫苏子 木通 槟榔
每服三钱，姜三片，水煎。
香港脚冲心之候，令人心胸烦闷，呕吐气急，甚者脉绝不出欲死也。盖风湿毒瓦斯，初从足
起，久而不治，则上冲心胃之分，最为急候。下气，除湿，泄毒，不可缓也。
吴茱萸汤
吴茱萸（半两） 木瓜（一两） 槟榔（二两，鸡心者佳）
水煎五钱，入竹叶一把，以快利为度。一法 咀，每服八钱，水一中盏半，生姜五片，
煎至一盏，去滓温服无时。
苏长史茱萸汤
吴萸（六升） 木瓜（二枚）
水一斗三升，煮取三升，分三服。如人行十里久，进一服。或吐、或汗、或利、或大热闷，
木香汤
青木香 生黑豆皮（二两） 大黄（炒） 紫雪（一两）
水煎五钱，入紫雪三钱，分二服，顷再服，当下燥粪。
杉木节汤
杉木节 橘叶（一升） 大腹（七枚，连皮） 童便（三升）
同煮取一升半，分二服。如一服得快利即止。
唐柳宗元患香港脚，夜半痞绝，左胁有块如大石，且死，困塞不知人三日矣，家人皆号哭
。荣阳郑洵美传此方服之。半日顷，气通立愈。
犀角散 治香港脚冲心，烦喘闷乱，头痛口干，坐卧不得。
犀角屑 枳壳（去瓤，麸炒） 沉香（各七钱半） 紫苏梗叶 槟榔 麦冬（去心） 赤苓（
去皮，各一两） 木香 防风（各半两） 石膏（研细，二两）
上 咀，每服八钱，水一中盏半，煎至一大盏，去渣，入淡竹沥一合，更煎一二沸，温
服不拘时。
《金匮要略》中说：香港脚（一种以足胫肿重、麻木疼痛为主要表现的疾病）的病邪上行至少腹，导致该部位感觉迟钝或丧失，应用肾气丸治疗。这是因为湿邪之气从下部侵袭向上蔓延，若肾气虚弱、阳气不足，无法抵御外邪，病邪就会逐渐侵入少腹，导致气血痹阻，出现麻木不仁的症状。肾气丸能够调理肾气，肾气得以调和，邪气自然下行，麻木不仁的症状也就随之消失。
肾气丸
熟地黄（八两） 山茱萸 山药（各四两） 茯苓 泽泻 牡丹皮（各三两） 附子（炮制） 肉桂（各一两）
以上八味药研成细末，用炼蜜制成如梧桐子大小的丸剂，每次服用三钱，空腹时用淡盐汤送服。
《三因极一病证方论》中的吴茱萸丸，用于治疗香港脚病邪入腹，腹部感觉迟钝，气喘急促近乎死亡的情况。
吴茱萸（用汤水洗七次） 木瓜（去除瓤，切片，晒干，与吴茱萸等分）
将上述药物研为细末，用酒调糊制成如梧桐子大小的丸剂，每次服用五十丸，最多一百丸，饮酒送服即可；或者将木瓜蒸烂，研磨成膏来制丸，效果尤其好。
所谓香港脚上气，是因为风毒湿气沿着经络上行进入肺脏的缘故。肺主气并主管呼吸，邪气侵入后，导致气道紧迫，气机升降不顺，从而引起上气喘促胀满，严重时甚至不能仰卧。
桑白皮汤
桑白皮（炙，二两） 陈皮（一两） 葶苈子（苦者炒后研碎，一两） 杏仁（去皮尖，一两）
共同研为细末，用水煎煮，加入姜枣汤，再放入药末三钱，煮沸后温服，应当通过排便一二行，使肿胀和气逆消退而痊愈。每隔三五日服用一次。另一版本方中不含杏仁。
《南阳活人书》中的桑白皮散
桑白皮 郁李仁（各一两） 赤茯苓（二两） 木香 防己（各一两半） 紫苏子 木通 槟榔
每次服用三钱，加生姜三片，用水煎煮。
香港脚冲心的症状，表现为心胸烦闷，呕吐，气急，严重时脉搏微弱甚至摸不到，有濒死感。这是因为风湿毒气，起初从足部发起，若久治不愈，就会向上冲击心胃部位，属于最为危急的证候。此时必须迅速采取降气、除湿、泄毒的治疗方法，不可迟缓。
吴茱萸汤
吴茱萸（半两） 木瓜（一两） 槟榔（二两，以鸡心形者为佳）
用水煎煮五钱药量，加入一把竹叶，以大便通畅为度。另一种方法是将药材切碎，每次服用八钱，加水一盏半，生姜五片，煎至一盏，去渣后随时温服。
苏长史茱萸汤
吴茱萸（六升） 木瓜（两个）
用水一斗三升，煮取三升药液，分三次服用。如果人行走十里路的时间间隔后，服用一次。如果出现呕吐、出汗、腹泻或高热烦闷等情况，可用木香汤。
木香汤
青木香 生黑豆皮（二两） 大黄（炒） 紫雪（一两）
用水煎煮五钱药量，加入紫雪三钱，分两次服用，片刻后再服，应当排出燥结的大便。
杉木节汤
杉木节 橘叶（一升） 大腹皮（七个，带皮） 童便（三升，即健康儿童的尿液）
共同煮取一升半药液，分两次服用。如果服用一次后大便通畅即停止服用。
唐代柳宗元患有香港脚，半夜时病情突然加重，左胁下有肿块像大石头一样，气息闭塞，昏迷不知人事已达三天，家人们都痛哭流涕。荥阳人郑洵美传授此方，服用后，半天之内，气机通畅，立即痊愈。
犀角散，用于治疗香港脚冲心，出现烦躁气喘、胸闷混乱、头痛口干、坐卧不安的症状。
犀角屑 枳壳（去除瓤，麸皮炒） 沉香（各七钱半） 紫苏梗叶 槟榔 麦冬（去心） 赤茯苓（去皮，各一两） 木香 防风（各半两） 石膏（研细，二两）
将上述药材切碎，每次服用八钱，加水一盏半，煎至一大盏，去渣，加入淡竹沥一合，再煮沸一两次，不拘时间温服。
The *Jingui Yaolue* (Essential Prescriptions of the Golden Cabinet) states: When Hongjiaojiao (a disease characterized by swelling and numbness of the lower legs) pathogenic factors ascend to the lower abdomen, causing insensibility in that area, Shenqi Wan (Kidney Qi Pill) should be used. This is because dampness pathogenic factors invade from below and move upward; if Kidney Qi is deficient and Yang energy is weak, failing to resist the invasion, the pathogen gradually enters the lower abdomen, leading to Bi obstruction (blockage of meridians and collaterals) and resulting in insensibility. Shenqi Wan regulates Kidney Qi; once Kidney Qi is harmonized, the pathogenic factors naturally descend, and the insensibility resolves.
Shenqi Wan (Kidney Qi Pill)
Prepared Rehmanniae Radix (Shu Dihuang, 8 liang)
Cornus Officinalis Fruit (Rougui/Shanyuzhuyu, 4 liang)
Chinese Yam (Shanyao, 4 liang)
Poria (Fuling, 3 liang)
Alisma Rhizome (Zexie, 3 liang)
Moutan Cortex (Danpi, 3 liang)
Prepared Aconiti Lateralis Radix (Fu Zi, 1 liang)
Cinnamon Twig (Rougui, 1 liang)
Grind the above eight ingredients into fine powder, mix with refined honey to form pills the size of wutong seeds. Take 3 qian per dose, administered on an empty stomach with light salt water decoction.
Wuyu Wan (Evodia Pill) from *Sanyin Fang* (Treatise on the Causes and Manifestations of All Diseases) treats Hongjiaojiao where pathogenic factors enter the abdomen, causing abdominal insensibility and severe asthma approaching death.
Evodiae Fructus (Wuyu, washed seven times with hot water)
Chaenomelis Fructus (Mu Gua, deseeded, sliced, sun-dried, equal proportion to Evodiae Fructus)
Grind into powder, bind with wine paste to form pills the size of wutong seeds. Take 50 to 100 pills per dose, washed down with wine. Alternatively, steam Chaenomelis Fructus until soft, grind into paste for pill formation, which is particularly effective.
The condition known as "Hongjiaojiao Shangqi" (Ascending Qi in Hongjiaojiao) occurs because wind-toxicity and dampness follow the meridians upward into the Lung. The Lung governs Qi and respiration; when pathogenic factors invade, the airway becomes tight, and the ascending and descending mechanisms are obstructed, causing upper asthma and fullness. In severe cases, the patient cannot lie flat.
Sangbaipi Tang (Mulberry Bark Decoction)
Mori Cortex (Sangbaipi, processed with heat, 2 liang)
Citrus Reticulatae Pericarpium (Chenpi, 1 liang)
Descurainiae Semen Lepidii Sem et Erucae Semen (Tinglizi, bitter variety stir-fried and crushed, 1 liang)
Prunus Armeniaca Seed (Xingren, peeled and de-pitted, 1 liang)
Grind together into powder. Decoct in water, add Ginger and Jujube soup, then add 3 qian of the powder. Boil again and take warm. It should induce one or two bowel movements, reducing swelling and descending rebellious Qi to achieve recovery. Take once every three to five days. Another version excludes Xingren.
Sangbaipi San (Mulberry Bark Powder) from *Ren Shu* (The Living People's Book)
Mori Cortex (Sangbaipi, 1 liang)
Prunus Suschuanensis Seed (Yuliren, 1 liang)
Polyporus (Chiling, 2 liang)
Costi Rhizoma (Muxiang, 1.5 liang)
Stephaniae Tetrandrae Radix (Fangji, 1.5 liang)
Perillae Fructus (Zisuzi, amount not specified in original snippet but implied part of formula)
Akebia Caulis (Mutong, amount not specified)
Areca Seed (Binglang, amount not specified)
Take 3 qian per dose, with 3 slices of fresh ginger, decocted in water.
The syndrome of "Hongjiaojiao Chongxin" (Hongjiaojiao Rushing to the Heart) manifests as chest and heart vexation and oppression, vomiting, and rapid breathing. In severe cases, the pulse may disappear, indicating a critical state nearing death. This is because wind-damp toxicity originates in the feet; if untreated for a long time, it rushes upward to the Heart and Stomach regions, constituting a most urgent condition. Methods to direct Qi downward, eliminate dampness, and drain toxicity must be employed without delay.
Wuyu Tang (Evodia Decoction)
Evodiae Fructus (Wuyu, 0.5 liang)
Chaenomelis Fructus (Mu Gua, 1 liang)
Areca Seed (Binglang, 2 liang, chicken-heart shape preferred)
Decoct 5 qian of herbs in water, adding a handful of Bamboo Leaves. Stop when bowel movement is unobstructed. Another method: coarsely crush the herbs, take 8 qian per dose, add 1.5 zhan of water and 5 slices of fresh ginger, decoct to 1 zhan, strain, and take warm at any time.
Su Changshi Zuyu Tang (Director Su's Evodia Decoction)
Evodiae Fructus (Wuyu, 6 sheng)
Chaenomelis Fructus (Mu Gua, 2 fruits)
Add 13 sheng of water, boil to obtain 3 sheng of liquid. Divide into three doses. Administer one dose after the patient has walked approximately ten li. If vomiting, sweating, diarrhea, or high fever with oppression occurs, use Muxiang Tang.
Muxiang Tang (Costus Decoction)
Aquilariae Lignum Resinatum (Qingmuxiang)
Vigna Radiata Testa (Shengheidoupi, 2 liang)
Rhei Radix et Rhizoma (Dahuang, stir-fried)
Zixue (Purple Snow, 1 liang)
Decoct 5 qian of herbs in water, add 3 qian of Zixue. Divide into two doses. Take the second dose shortly after the first. It should expel dry feces.
Shanjiejie Tang (Fir Branch Joint Decoction)
Sabinae Ramulus (Shanjiejie)
Citrus Reticulatae Folium (Juye, 1 sheng)
Arecae Pericarpium (Dafu, 7 pieces, with peel)
Pueri Urine (Tongbian, 3 sheng)
Boil together to obtain 1.5 sheng of liquid. Divide into two doses. Stop if one dose produces rapid relief/bowel movement.
Liu Zongyuan of the Tang Dynasty suffered from Hongjiaojiao. At midnight, his condition suddenly worsened with blockage; a mass like a large stone formed in his left hypochondrium. He was near death, unconscious and blocked for three days, while his family wept bitterly. Zheng Xunmei from Yingyang transmitted this prescription. After taking it, within half a day, his Qi flowed freely, and he recovered immediately.
Xijiao San (Rhinoceros Horn Powder) treats Hongjiaojiao rushing to the Heart, causing vexation, asthma, chest oppression, confusion, headache, dry mouth, and inability to sit or lie down comfortably.
Rhinoceros Horn (Xijiao jian)
Aurantii Fructus Immaturus (Zhike, deseeded, stir-fried with bran, 0.75 qian each)
Agarwood (Chenxiang, 0.75 qian each)
Perillae Caulis and Folium (Zisugengye)
Areca Seed (Binglang)
Ophiopogonis Radix (Maidong, de-core)
Polyporus (Chiling, peeled, 1 liang each)
Costi Rhizoma (Muxiang)
Saposhnikoviae Radix (Fangfeng, 0.5 liang each)
Gypsum Fibrosum (Shigao, finely ground, 2 liang)
Coarsely crush the above. Take 8 qian per dose, add 1.5 zhan of water, decoct to 1 large zhan. Strain, add 1 he of Light Bamboo Juice (Danzhuli), boil for one or two more boils, and take warm at any time.